منابع مشابه
Fluctuations in chemical gelation.
We study a chemical gelation model in two dimensions which includes both monomer aggregations and bond fluctuations. Our numerical simulation shows that a sol-gel transition occurs when an initial monomer concentration is above a critical concentration. Fractal aggregates grow until the sol-gel transition occurs. After the gelation, however, bond fluctuations break the fractal structure and an ...
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A method to study event–by–event fluctuations of the " chemical " (particle type) composition of the final state of high energy collisions is proposed.
متن کاملQuark Fluctuations in a Chiral Model at finite chemical potential
During recent years the phenomenological importance of fluctuations in finite temperature/finite density QCD has been recognized [1]. The analysis of fluctuations is an essential method to characterize the thermodynamic properties of a system. Enhanced fluctuations signal the onset of a phase transition [2]. Thus, measuring modifications in the magnitude of fluctuations in heavy ion collisions ...
متن کاملConcentration fluctuations in a mesoscopic oscillating chemical reaction system.
Under sustained pumping, kinetics of macroscopic nonlinear biochemical reaction systems far from equilibrium either can be in a stationary steady state or can execute sustained oscillations about a fixed mean. For a system of two dynamic species X and Y, the concentrations n(x) and n(y) will be constant or will repetitively trace a closed loop in the (n(x), n(y)) phase plane, respectively. We s...
متن کاملDissipation Scale Fluctuations and Chemical Reaction Rates in Turbulent Flows
Small separation between reactants, not exceeding 10−8−10−7cm, is the necessary condition for various chemical reactions. It is shown that random advection and stretching by turbulence leads to formation of scalar-enriched sheets of strongly fluctuating thickness ηc. The molecular-level mixing is achieved by diffusion across these sheets (interfaces) separating the reactants. Since diffusion ti...
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ژورنال
عنوان ژورنال: Physical Review E
سال: 2007
ISSN: 1539-3755,1550-2376
DOI: 10.1103/physreve.75.041402